/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 08:06:24,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 08:06:24,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 08:06:24,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 08:06:24,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 08:06:24,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 08:06:24,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 08:06:24,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 08:06:24,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 08:06:24,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 08:06:24,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 08:06:24,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 08:06:24,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 08:06:24,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 08:06:24,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 08:06:24,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 08:06:24,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 08:06:24,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 08:06:24,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 08:06:24,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 08:06:24,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 08:06:24,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 08:06:24,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 08:06:24,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 08:06:24,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 08:06:24,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 08:06:24,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 08:06:24,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 08:06:24,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 08:06:24,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 08:06:24,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 08:06:24,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 08:06:24,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 08:06:24,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 08:06:24,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 08:06:24,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 08:06:24,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 08:06:24,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 08:06:24,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 08:06:24,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 08:06:24,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 08:06:24,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 08:06:24,942 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 08:06:24,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 08:06:24,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 08:06:24,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 08:06:24,944 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 08:06:24,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 08:06:24,945 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 08:06:24,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 08:06:24,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 08:06:24,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 08:06:24,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 08:06:24,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 08:06:24,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 08:06:24,946 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 08:06:24,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 08:06:24,947 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 08:06:24,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 08:06:24,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 08:06:24,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 08:06:24,948 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 08:06:24,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 08:06:24,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:06:24,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 08:06:24,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 08:06:24,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 08:06:24,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 08:06:24,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 08:06:24,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 08:06:24,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 08:06:24,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 08:06:25,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 08:06:25,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 08:06:25,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 08:06:25,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 08:06:25,287 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 08:06:25,288 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:06:25,352 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c03788db/9a079d981e6345e1a983bf8ff2571ce0/FLAG884def593 [2020-10-14 08:06:25,844 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 08:06:25,852 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-mthreaded/pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:06:25,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c03788db/9a079d981e6345e1a983bf8ff2571ce0/FLAG884def593 [2020-10-14 08:06:26,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7c03788db/9a079d981e6345e1a983bf8ff2571ce0 [2020-10-14 08:06:26,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 08:06:26,123 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 08:06:26,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 08:06:26,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 08:06:26,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 08:06:26,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4712c1ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26, skipping insertion in model container [2020-10-14 08:06:26,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 08:06:26,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 08:06:26,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:06:26,532 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 08:06:26,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 08:06:26,722 INFO L208 MainTranslator]: Completed translation [2020-10-14 08:06:26,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26 WrapperNode [2020-10-14 08:06:26,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 08:06:26,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 08:06:26,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 08:06:26,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 08:06:26,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (1/1) ... [2020-10-14 08:06:26,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 08:06:26,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 08:06:26,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 08:06:26,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 08:06:26,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 08:06:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 08:06:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 08:06:26,862 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 08:06:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2020-10-14 08:06:26,863 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2020-10-14 08:06:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2020-10-14 08:06:26,864 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-10-14 08:06:26,865 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-14 08:06:26,865 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 08:06:26,865 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2020-10-14 08:06:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 08:06:26,866 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-14 08:06:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 08:06:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2020-10-14 08:06:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 08:06:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 08:06:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure read [2020-10-14 08:06:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure write [2020-10-14 08:06:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2020-10-14 08:06:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2020-10-14 08:06:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2020-10-14 08:06:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-10-14 08:06:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-14 08:06:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 08:06:26,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 08:06:26,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 08:06:27,649 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 08:06:27,649 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 08:06:27,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:06:27 BoogieIcfgContainer [2020-10-14 08:06:27,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 08:06:27,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 08:06:27,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 08:06:27,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 08:06:27,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:06:26" (1/3) ... [2020-10-14 08:06:27,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caf3d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:06:27, skipping insertion in model container [2020-10-14 08:06:27,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:06:26" (2/3) ... [2020-10-14 08:06:27,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caf3d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:06:27, skipping insertion in model container [2020-10-14 08:06:27,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:06:27" (3/3) ... [2020-10-14 08:06:27,665 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.3.ufo.BOUNDED-6.pals.c [2020-10-14 08:06:27,677 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 08:06:27,686 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 08:06:27,701 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 08:06:27,729 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 08:06:27,730 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 08:06:27,730 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 08:06:27,730 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 08:06:27,730 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 08:06:27,731 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 08:06:27,731 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 08:06:27,731 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 08:06:27,755 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2020-10-14 08:06:27,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:06:27,767 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:06:27,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:06:27,769 INFO L427 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:06:27,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:06:27,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1825328611, now seen corresponding path program 1 times [2020-10-14 08:06:27,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:06:27,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569169744] [2020-10-14 08:06:27,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:06:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:28,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:28,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:28,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:06:28,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:28,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-10-14 08:06:28,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:28,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:28,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:28,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 08:06:28,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 08:06:28,730 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:06:28,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:06:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:28,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:28,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:06:28,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:28,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 08:06:28,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:28,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:28,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:28,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:28,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:06:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:28,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:28,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:28,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:06:28,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:28,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:06:28,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:28,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:28,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:28,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:28,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:28,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 08:06:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:28,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:28,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:28,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:06:28,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:28,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:06:28,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:28,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:28,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 08:06:28,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:28,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:28,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:06:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:28,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:28,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:28,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:28,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:28,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:06:28,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:28,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:28,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:28,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:28,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:28,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:06:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:28,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:28,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:28,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:28,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:28,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:06:28,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:28,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:28,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:28,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:28,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:28,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:28,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:06:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:28,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:28,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:28,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:28,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:28,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:06:28,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:28,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:28,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:06:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:28,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:29,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:29,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:06:29,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:29,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:06:29,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:29,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:29,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:06:29,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:29,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:06:29,062 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569169744] [2020-10-14 08:06:29,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:06:29,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 08:06:29,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720301861] [2020-10-14 08:06:29,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 08:06:29,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:06:29,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 08:06:29,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 08:06:29,091 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 6 states. [2020-10-14 08:06:30,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:06:30,299 INFO L93 Difference]: Finished difference Result 294 states and 465 transitions. [2020-10-14 08:06:30,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 08:06:30,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-10-14 08:06:30,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:06:30,315 INFO L225 Difference]: With dead ends: 294 [2020-10-14 08:06:30,316 INFO L226 Difference]: Without dead ends: 184 [2020-10-14 08:06:30,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:06:30,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-10-14 08:06:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 169. [2020-10-14 08:06:30,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-14 08:06:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 271 transitions. [2020-10-14 08:06:30,382 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 271 transitions. Word has length 65 [2020-10-14 08:06:30,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:06:30,383 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 271 transitions. [2020-10-14 08:06:30,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 08:06:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 271 transitions. [2020-10-14 08:06:30,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 08:06:30,387 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:06:30,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:06:30,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 08:06:30,388 INFO L427 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:06:30,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:06:30,388 INFO L82 PathProgramCache]: Analyzing trace with hash 795969313, now seen corresponding path program 1 times [2020-10-14 08:06:30,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:06:30,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963783757] [2020-10-14 08:06:30,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:06:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:30,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:31,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:31,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-14 08:06:31,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:31,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 766 [2020-10-14 08:06:31,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:31,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 08:06:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 08:06:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:06:31,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:31,437 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:06:31,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:06:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:31,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:31,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:31,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:06:31,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:31,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:06:31,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:31,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:31,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:31,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:31,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:06:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:31,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:31,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:31,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 08:06:31,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:31,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 08:06:31,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:31,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:06:31,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:31,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 08:06:31,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:31,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 08:06:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:31,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:31,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:31,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:06:31,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:31,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:06:31,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:31,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:06:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-14 08:06:31,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:06:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:31,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 08:06:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:31,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:31,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:31,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:31,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:31,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:06:31,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:31,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:31,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:31,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:31,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 08:06:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:31,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:31,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:31,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:31,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:31,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:06:31,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:31,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:31,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:31,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:31,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:31,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-14 08:06:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:31,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:31,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:31,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:31,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:31,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:06:31,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:31,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:06:31,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:31,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:31,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:06:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:31,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:31,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:31,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:06:31,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:31,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:06:31,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:31,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:06:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:31,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:06:31,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963783757] [2020-10-14 08:06:31,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:06:31,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-14 08:06:31,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035646307] [2020-10-14 08:06:31,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-14 08:06:31,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:06:31,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-14 08:06:31,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-14 08:06:31,838 INFO L87 Difference]: Start difference. First operand 169 states and 271 transitions. Second operand 12 states. [2020-10-14 08:06:32,348 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:06:32,583 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-14 08:06:32,862 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:06:33,053 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:06:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:06:34,646 INFO L93 Difference]: Finished difference Result 296 states and 467 transitions. [2020-10-14 08:06:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 08:06:34,647 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 65 [2020-10-14 08:06:34,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:06:34,652 INFO L225 Difference]: With dead ends: 296 [2020-10-14 08:06:34,653 INFO L226 Difference]: Without dead ends: 193 [2020-10-14 08:06:34,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:06:34,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-14 08:06:34,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 169. [2020-10-14 08:06:34,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-10-14 08:06:34,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 241 transitions. [2020-10-14 08:06:34,680 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 241 transitions. Word has length 65 [2020-10-14 08:06:34,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:06:34,681 INFO L479 AbstractCegarLoop]: Abstraction has 169 states and 241 transitions. [2020-10-14 08:06:34,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-14 08:06:34,681 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 241 transitions. [2020-10-14 08:06:34,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-14 08:06:34,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:06:34,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:06:34,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 08:06:34,685 INFO L427 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:06:34,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:06:34,686 INFO L82 PathProgramCache]: Analyzing trace with hash 483350775, now seen corresponding path program 1 times [2020-10-14 08:06:34,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:06:34,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102964415] [2020-10-14 08:06:34,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:06:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:34,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:34,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:35,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:37,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:39,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:39,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 08:06:39,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:06:39,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 08:06:39,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:39,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:39,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:06:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:06:39,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-14 08:06:39,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:39,919 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:06:39,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:06:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:39,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:39,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:39,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:06:39,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:39,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:06:39,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:39,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:39,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:39,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:39,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:06:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:39,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:40,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:40,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:06:40,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:40,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 08:06:40,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:40,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:40,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:40,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:40,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:06:40,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:40,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:06:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:40,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:40,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:40,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:06:40,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:40,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:06:40,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:40,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:40,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:40,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:40,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:06:40,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:40,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:06:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:40,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:40,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:40,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:40,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:40,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:06:40,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:40,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:40,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:40,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:06:40,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:40,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:06:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:40,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:40,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:40,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:40,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:40,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 08:06:40,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:40,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:40,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:40,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:06:40,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:40,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:06:40,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:40,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:40,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:40,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:40,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:40,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:06:40,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:40,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:06:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:06:40,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:06:40,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:40,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 08:06:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:40,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:40,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:40,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:06:40,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:40,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:06:40,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:40,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:40,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:06:40,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:40,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:40,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:06:40,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102964415] [2020-10-14 08:06:40,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:06:40,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:06:40,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485817083] [2020-10-14 08:06:40,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:06:40,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:06:40,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:06:40,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:06:40,273 INFO L87 Difference]: Start difference. First operand 169 states and 241 transitions. Second operand 9 states. [2020-10-14 08:06:40,464 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:06:42,444 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:06:42,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:06:42,618 INFO L93 Difference]: Finished difference Result 390 states and 584 transitions. [2020-10-14 08:06:42,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:06:42,619 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-14 08:06:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:06:42,626 INFO L225 Difference]: With dead ends: 390 [2020-10-14 08:06:42,630 INFO L226 Difference]: Without dead ends: 293 [2020-10-14 08:06:42,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:06:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-10-14 08:06:42,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 258. [2020-10-14 08:06:42,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-10-14 08:06:42,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 379 transitions. [2020-10-14 08:06:42,696 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 379 transitions. Word has length 94 [2020-10-14 08:06:42,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:06:42,696 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 379 transitions. [2020-10-14 08:06:42,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:06:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 379 transitions. [2020-10-14 08:06:42,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 08:06:42,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:06:42,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:06:42,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 08:06:42,708 INFO L427 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:06:42,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:06:42,708 INFO L82 PathProgramCache]: Analyzing trace with hash 439536364, now seen corresponding path program 1 times [2020-10-14 08:06:42,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:06:42,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1067598937] [2020-10-14 08:06:42,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:06:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:42,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:42,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:42,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:43,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:46,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:47,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:47,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 08:06:47,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:06:47,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-14 08:06:47,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:47,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:47,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:06:47,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:06:47,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 08:06:47,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:48,007 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:06:48,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:06:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:48,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:48,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:48,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:06:48,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:48,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:06:48,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:48,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:48,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:48,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:48,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:06:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:48,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:48,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:48,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:06:48,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:48,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 08:06:48,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:48,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:06:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 08:06:48,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:48,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:06:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:48,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:48,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:48,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:06:48,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:48,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:06:48,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:48,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:48,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:06:48,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:48,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:06:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:48,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:48,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:48,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:48,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:06:48,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:48,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:06:48,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:48,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:06:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:48,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:48,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:48,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:48,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:48,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:06:48,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:48,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:48,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:48,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:06:48,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:48,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:06:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:48,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:48,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:48,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:06:48,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:48,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:06:48,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:48,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:48,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:06:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:06:48,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:48,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:06:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:48,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:48,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:48,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:06:48,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:48,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:06:48,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:48,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:48,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:48,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:06:48,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:48,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:48,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:06:48,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1067598937] [2020-10-14 08:06:48,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:06:48,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:06:48,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342660362] [2020-10-14 08:06:48,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:06:48,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:06:48,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:06:48,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:06:48,422 INFO L87 Difference]: Start difference. First operand 258 states and 379 transitions. Second operand 9 states. [2020-10-14 08:06:48,622 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:06:48,821 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:06:49,059 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:06:49,417 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:06:50,411 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:06:53,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:06:53,166 INFO L93 Difference]: Finished difference Result 1006 states and 1501 transitions. [2020-10-14 08:06:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:06:53,166 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2020-10-14 08:06:53,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:06:53,172 INFO L225 Difference]: With dead ends: 1006 [2020-10-14 08:06:53,172 INFO L226 Difference]: Without dead ends: 774 [2020-10-14 08:06:53,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:06:53,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-10-14 08:06:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 694. [2020-10-14 08:06:53,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-14 08:06:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1020 transitions. [2020-10-14 08:06:53,237 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1020 transitions. Word has length 96 [2020-10-14 08:06:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:06:53,237 INFO L479 AbstractCegarLoop]: Abstraction has 694 states and 1020 transitions. [2020-10-14 08:06:53,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:06:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1020 transitions. [2020-10-14 08:06:53,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 08:06:53,240 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:06:53,241 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:06:53,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 08:06:53,241 INFO L427 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:06:53,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:06:53,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1028203523, now seen corresponding path program 1 times [2020-10-14 08:06:53,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:06:53,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579789135] [2020-10-14 08:06:53,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:06:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:53,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:53,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:58,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:58,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 08:06:58,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 08:06:58,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-14 08:06:58,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:58,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:06:58,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:06:58,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 08:06:58,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:58,540 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:06:58,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:06:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:58,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:58,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:58,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:06:58,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:58,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 08:06:58,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:58,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:58,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:58,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:58,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:58,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:58,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:06:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:58,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:58,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:58,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:06:58,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:58,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 08:06:58,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:58,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:06:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:58,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:06:58,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:58,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:06:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:58,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:58,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:58,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:06:58,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:58,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:06:58,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:58,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:58,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:58,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:06:58,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:58,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:06:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:58,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:58,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:58,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:58,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:58,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:06:58,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:58,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:58,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:58,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:58,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:06:58,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:58,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:06:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:58,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:58,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:58,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:06:58,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:58,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 08:06:58,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:58,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:06:58,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:06:58,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:58,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:06:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:58,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:58,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:58,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:06:58,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:58,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:06:58,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:58,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:06:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:06:58,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:06:58,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:06:58,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:06:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:06:58,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:06:58,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:06:58,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:06:58,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:06:58,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:06:58,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:06:58,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:06:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:06:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:06:58,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:06:58,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:06:58,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:06:58,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579789135] [2020-10-14 08:06:58,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:06:58,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:06:58,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707964056] [2020-10-14 08:06:58,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:06:58,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:06:58,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:06:58,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:06:58,950 INFO L87 Difference]: Start difference. First operand 694 states and 1020 transitions. Second operand 9 states. [2020-10-14 08:06:59,149 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:06:59,373 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:06:59,836 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:07:00,049 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:07:00,871 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:03,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:03,795 INFO L93 Difference]: Finished difference Result 2701 states and 4007 transitions. [2020-10-14 08:07:03,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:07:03,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 08:07:03,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:03,818 INFO L225 Difference]: With dead ends: 2701 [2020-10-14 08:07:03,819 INFO L226 Difference]: Without dead ends: 2064 [2020-10-14 08:07:03,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:07:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2020-10-14 08:07:03,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 1862. [2020-10-14 08:07:03,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1862 states. [2020-10-14 08:07:03,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2708 transitions. [2020-10-14 08:07:03,979 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2708 transitions. Word has length 97 [2020-10-14 08:07:03,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:03,980 INFO L479 AbstractCegarLoop]: Abstraction has 1862 states and 2708 transitions. [2020-10-14 08:07:03,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:03,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2708 transitions. [2020-10-14 08:07:03,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-14 08:07:03,985 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:03,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:03,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 08:07:03,986 INFO L427 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:03,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:03,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1950996893, now seen corresponding path program 1 times [2020-10-14 08:07:03,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:03,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771302056] [2020-10-14 08:07:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:04,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:04,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:04,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:04,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:04,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-14 08:07:09,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:07:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 08:07:09,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:09,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 08:07:09,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,217 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:09,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:09,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:09,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:09,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:09,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 08:07:09,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:07:09,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:09,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:09,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:09,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:09,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:09,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:09,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:09,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:09,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:09,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 08:07:09,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:09,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:09,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:09,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:07:09,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 08:07:09,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:07:09,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:07:09,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:09,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-14 08:07:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:09,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:09,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:09,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:09,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:09,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:09,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:09,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:09,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:09,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:09,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:09,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:09,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771302056] [2020-10-14 08:07:09,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:09,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:09,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630106956] [2020-10-14 08:07:09,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:09,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:09,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:09,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:09,625 INFO L87 Difference]: Start difference. First operand 1862 states and 2708 transitions. Second operand 9 states. [2020-10-14 08:07:09,916 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:10,215 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2020-10-14 08:07:10,532 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2020-10-14 08:07:10,886 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 162 [2020-10-14 08:07:11,782 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:14,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:14,761 INFO L93 Difference]: Finished difference Result 6503 states and 9594 transitions. [2020-10-14 08:07:14,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:07:14,762 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 97 [2020-10-14 08:07:14,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:14,789 INFO L225 Difference]: With dead ends: 6503 [2020-10-14 08:07:14,789 INFO L226 Difference]: Without dead ends: 4685 [2020-10-14 08:07:14,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:07:14,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4685 states. [2020-10-14 08:07:15,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4685 to 4286. [2020-10-14 08:07:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4286 states. [2020-10-14 08:07:15,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4286 states to 4286 states and 6203 transitions. [2020-10-14 08:07:15,118 INFO L78 Accepts]: Start accepts. Automaton has 4286 states and 6203 transitions. Word has length 97 [2020-10-14 08:07:15,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:15,120 INFO L479 AbstractCegarLoop]: Abstraction has 4286 states and 6203 transitions. [2020-10-14 08:07:15,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:15,120 INFO L276 IsEmpty]: Start isEmpty. Operand 4286 states and 6203 transitions. [2020-10-14 08:07:15,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-14 08:07:15,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:15,134 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:15,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 08:07:15,135 INFO L427 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:15,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:15,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1346789913, now seen corresponding path program 1 times [2020-10-14 08:07:15,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:15,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270743719] [2020-10-14 08:07:15,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:15,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:15,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:15,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:15,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:17,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-14 08:07:19,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:07:19,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4285 [2020-10-14 08:07:19,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 08:07:19,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 08:07:19,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:19,657 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:19,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:19,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:19,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:19,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:19,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:19,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:19,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:19,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:19,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:19,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:19,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:07:19,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:19,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:19,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 08:07:19,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:07:19,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:19,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:19,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:19,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:19,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:19,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:19,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:19,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:19,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:19,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:19,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:19,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:19,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:19,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:19,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:19,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:19,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:19,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:19,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:19,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:07:19,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:07:19,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:07:19,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:07:19,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:19,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 08:07:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:19,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:07:19,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:19,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:19,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:07:19,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:19,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:19,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 08:07:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:19,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:19,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:19,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:19,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:19,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:19,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:19,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:19,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:19,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:19,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:19,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270743719] [2020-10-14 08:07:19,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:19,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:19,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278477581] [2020-10-14 08:07:19,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:19,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:19,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:19,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:19,909 INFO L87 Difference]: Start difference. First operand 4286 states and 6203 transitions. Second operand 9 states. [2020-10-14 08:07:20,088 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:07:22,297 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:07:22,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:22,535 INFO L93 Difference]: Finished difference Result 9340 states and 13850 transitions. [2020-10-14 08:07:22,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:07:22,535 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-14 08:07:22,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:22,570 INFO L225 Difference]: With dead ends: 9340 [2020-10-14 08:07:22,570 INFO L226 Difference]: Without dead ends: 6650 [2020-10-14 08:07:22,582 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:07:22,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6650 states. [2020-10-14 08:07:22,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6650 to 6002. [2020-10-14 08:07:22,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6002 states. [2020-10-14 08:07:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6002 states to 6002 states and 8717 transitions. [2020-10-14 08:07:22,929 INFO L78 Accepts]: Start accepts. Automaton has 6002 states and 8717 transitions. Word has length 98 [2020-10-14 08:07:22,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:22,930 INFO L479 AbstractCegarLoop]: Abstraction has 6002 states and 8717 transitions. [2020-10-14 08:07:22,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:22,930 INFO L276 IsEmpty]: Start isEmpty. Operand 6002 states and 8717 transitions. [2020-10-14 08:07:22,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 08:07:22,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:22,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:22,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 08:07:22,944 INFO L427 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:22,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:22,944 INFO L82 PathProgramCache]: Analyzing trace with hash 472684178, now seen corresponding path program 1 times [2020-10-14 08:07:22,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:22,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853684177] [2020-10-14 08:07:22,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:22,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:23,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:23,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:23,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:25,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:27,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:27,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-14 08:07:27,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:07:27,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:07:27,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:27,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 08:07:27,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:07:27,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:28,121 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:28,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:28,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:28,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:28,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:28,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:28,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:07:28,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:28,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:28,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:28,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:28,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:28,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:28,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:28,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:28,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 08:07:28,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:07:28,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 08:07:28,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:28,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:07:28,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:07:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:28,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:28,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:28,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:28,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:28,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:28,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:28,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:07:28,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:28,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:28,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:07:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:28,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:28,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:28,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:28,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:28,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:28,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:28,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:28,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:28,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 08:07:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:28,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:28,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:28,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:07:28,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:28,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:28,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:28,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:28,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:28,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:07:28,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:28,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:28,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 08:07:28,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:28,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:28,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:28,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:07:28,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:28,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:07:28,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:28,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:28,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:28,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:07:28,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:28,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:28,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-14 08:07:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:28,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:28,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:28,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:28,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:28,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:28,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:28,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:28,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:28,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:28,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:28,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853684177] [2020-10-14 08:07:28,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:28,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:07:28,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794816002] [2020-10-14 08:07:28,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:07:28,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:28,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:07:28,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:07:28,371 INFO L87 Difference]: Start difference. First operand 6002 states and 8717 transitions. Second operand 7 states. [2020-10-14 08:07:28,602 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:29,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:29,986 INFO L93 Difference]: Finished difference Result 13195 states and 18900 transitions. [2020-10-14 08:07:29,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:07:29,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 100 [2020-10-14 08:07:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:30,024 INFO L225 Difference]: With dead ends: 13195 [2020-10-14 08:07:30,025 INFO L226 Difference]: Without dead ends: 7475 [2020-10-14 08:07:30,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:07:30,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2020-10-14 08:07:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 6029. [2020-10-14 08:07:30,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6029 states. [2020-10-14 08:07:30,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6029 states to 6029 states and 8750 transitions. [2020-10-14 08:07:30,370 INFO L78 Accepts]: Start accepts. Automaton has 6029 states and 8750 transitions. Word has length 100 [2020-10-14 08:07:30,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:30,370 INFO L479 AbstractCegarLoop]: Abstraction has 6029 states and 8750 transitions. [2020-10-14 08:07:30,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:07:30,371 INFO L276 IsEmpty]: Start isEmpty. Operand 6029 states and 8750 transitions. [2020-10-14 08:07:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:07:30,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:30,383 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:30,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 08:07:30,384 INFO L427 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash 428731464, now seen corresponding path program 1 times [2020-10-14 08:07:30,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:30,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786114001] [2020-10-14 08:07:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:30,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:30,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:30,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:30,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:31,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:35,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:35,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:07:35,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:07:35,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-14 08:07:35,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:35,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:35,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:35,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 08:07:35,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:35,607 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:35,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:35,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:35,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:35,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:35,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:35,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:07:35,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:35,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:35,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:35,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:35,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:35,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:35,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:35,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:07:35,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:35,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:07:35,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:35,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:35,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:07:35,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:35,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:07:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:35,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:35,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:35,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:35,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:35,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:35,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:35,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:35,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:35,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:35,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:35,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:07:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:35,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:35,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:35,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:35,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:35,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:07:35,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:35,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:35,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:35,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:35,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:35,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:35,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:07:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:35,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:35,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:35,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:07:35,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:35,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:35,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:35,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:07:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:07:35,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:35,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 08:07:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:35,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:35,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:35,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:07:35,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:35,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:35,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:35,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:35,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:35,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:07:35,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:35,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:35,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:07:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:35,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:35,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:35,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:35,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:35,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:35,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:35,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:35,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:35,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:35,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786114001] [2020-10-14 08:07:35,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:35,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:07:35,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445998621] [2020-10-14 08:07:35,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:07:35,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:35,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:07:35,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:07:35,870 INFO L87 Difference]: Start difference. First operand 6029 states and 8750 transitions. Second operand 9 states. [2020-10-14 08:07:36,073 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:36,283 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:07:36,599 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:07:37,144 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 162 [2020-10-14 08:07:37,736 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:40,879 INFO L93 Difference]: Finished difference Result 20264 states and 30001 transitions. [2020-10-14 08:07:40,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-14 08:07:40,880 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2020-10-14 08:07:40,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:40,946 INFO L225 Difference]: With dead ends: 20264 [2020-10-14 08:07:40,947 INFO L226 Difference]: Without dead ends: 15343 [2020-10-14 08:07:40,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2020-10-14 08:07:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15343 states. [2020-10-14 08:07:41,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15343 to 14054. [2020-10-14 08:07:41,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14054 states. [2020-10-14 08:07:41,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14054 states to 14054 states and 20233 transitions. [2020-10-14 08:07:41,906 INFO L78 Accepts]: Start accepts. Automaton has 14054 states and 20233 transitions. Word has length 101 [2020-10-14 08:07:41,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:41,906 INFO L479 AbstractCegarLoop]: Abstraction has 14054 states and 20233 transitions. [2020-10-14 08:07:41,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:07:41,908 INFO L276 IsEmpty]: Start isEmpty. Operand 14054 states and 20233 transitions. [2020-10-14 08:07:41,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:07:41,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:41,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:41,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 08:07:41,935 INFO L427 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:41,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:41,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1743634455, now seen corresponding path program 1 times [2020-10-14 08:07:41,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:41,936 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119194169] [2020-10-14 08:07:41,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:41,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:42,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:42,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:42,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:43,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:43,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:43,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:46,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:46,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:07:46,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:07:46,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:07:46,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:46,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:46,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:46,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 08:07:46,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:07:46,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:47,115 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:47,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:47,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:47,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:47,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:47,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:47,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:07:47,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:47,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:47,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:47,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:47,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:47,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:47,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:47,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 08:07:47,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:07:47,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 08:07:47,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:47,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:07:47,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 08:07:47,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:47,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 08:07:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:47,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:47,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:47,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:47,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:47,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:47,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-14 08:07:47,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:47,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:47,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 08:07:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:47,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:47,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:47,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:47,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:47,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:07:47,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:47,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:07:47,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:47,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:47,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 08:07:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:47,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:47,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:47,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:07:47,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:47,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:47,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:47,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:47,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:47,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:07:47,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:47,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:47,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:07:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:47,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:47,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:47,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:07:47,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:47,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:47,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:47,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 08:07:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:47,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:47,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:07:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:47,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:47,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:47,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:47,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:47,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:47,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:47,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:47,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:47,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:47,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:47,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:47,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119194169] [2020-10-14 08:07:47,305 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:47,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 08:07:47,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017999582] [2020-10-14 08:07:47,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 08:07:47,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:47,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 08:07:47,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 08:07:47,306 INFO L87 Difference]: Start difference. First operand 14054 states and 20233 transitions. Second operand 7 states. [2020-10-14 08:07:47,589 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:49,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:07:49,155 INFO L93 Difference]: Finished difference Result 20955 states and 30077 transitions. [2020-10-14 08:07:49,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 08:07:49,155 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 101 [2020-10-14 08:07:49,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:07:49,214 INFO L225 Difference]: With dead ends: 20955 [2020-10-14 08:07:49,214 INFO L226 Difference]: Without dead ends: 15559 [2020-10-14 08:07:49,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-14 08:07:49,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15559 states. [2020-10-14 08:07:49,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15559 to 14072. [2020-10-14 08:07:49,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14072 states. [2020-10-14 08:07:50,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14072 states to 14072 states and 20243 transitions. [2020-10-14 08:07:50,028 INFO L78 Accepts]: Start accepts. Automaton has 14072 states and 20243 transitions. Word has length 101 [2020-10-14 08:07:50,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:07:50,028 INFO L479 AbstractCegarLoop]: Abstraction has 14072 states and 20243 transitions. [2020-10-14 08:07:50,028 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 08:07:50,028 INFO L276 IsEmpty]: Start isEmpty. Operand 14072 states and 20243 transitions. [2020-10-14 08:07:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:07:50,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:07:50,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:07:50,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 08:07:50,055 INFO L427 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:07:50,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:07:50,056 INFO L82 PathProgramCache]: Analyzing trace with hash -302691111, now seen corresponding path program 1 times [2020-10-14 08:07:50,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:07:50,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319362433] [2020-10-14 08:07:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:07:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:50,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:50,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:50,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:50,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:50,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:55,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:07:55,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:07:55,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 08:07:55,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:55,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:07:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:07:55,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:55,270 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:07:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:07:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:55,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:55,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:07:55,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:07:55,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:55,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:55,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:55,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:55,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:07:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:55,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:55,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:07:55,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:07:55,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-14 08:07:55,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:55,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:07:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:07:55,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 08:07:55,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:55,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:07:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:55,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:55,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:07:55,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:55,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:55,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:55,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:55,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:55,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:55,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:07:55,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:55,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:07:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:55,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:55,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:07:55,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:55,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:07:55,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:55,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:55,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:55,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:07:55,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:55,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:55,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:07:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:55,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:55,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:07:55,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:07:55,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:55,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:07:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:07:55,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:07:55,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:55,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:07:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:55,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:55,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:07:55,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:55,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:07:55,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:55,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-14 08:07:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:55,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:07:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:07:55,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:07:55,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:07:55,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:07:55,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:07:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:07:55,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:07:55,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:07:55,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:07:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:07:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:07:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:07:55,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:07:55,776 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319362433] [2020-10-14 08:07:55,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:07:55,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:07:55,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389870409] [2020-10-14 08:07:55,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:07:55,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:07:55,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:07:55,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:07:55,778 INFO L87 Difference]: Start difference. First operand 14072 states and 20243 transitions. Second operand 10 states. [2020-10-14 08:07:55,976 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:07:56,327 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:07:56,531 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:07:56,750 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:07:57,005 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-14 08:07:57,194 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-14 08:08:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:01,409 INFO L93 Difference]: Finished difference Result 30249 states and 43492 transitions. [2020-10-14 08:08:01,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:08:01,411 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-14 08:08:01,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:01,484 INFO L225 Difference]: With dead ends: 30249 [2020-10-14 08:08:01,484 INFO L226 Difference]: Without dead ends: 16033 [2020-10-14 08:08:01,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:08:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16033 states. [2020-10-14 08:08:02,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16033 to 14792. [2020-10-14 08:08:02,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14792 states. [2020-10-14 08:08:02,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14792 states to 14792 states and 20891 transitions. [2020-10-14 08:08:02,477 INFO L78 Accepts]: Start accepts. Automaton has 14792 states and 20891 transitions. Word has length 101 [2020-10-14 08:08:02,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:02,477 INFO L479 AbstractCegarLoop]: Abstraction has 14792 states and 20891 transitions. [2020-10-14 08:08:02,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:08:02,478 INFO L276 IsEmpty]: Start isEmpty. Operand 14792 states and 20891 transitions. [2020-10-14 08:08:02,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-14 08:08:02,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:02,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:02,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 08:08:02,498 INFO L427 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:02,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:02,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1029253214, now seen corresponding path program 1 times [2020-10-14 08:08:02,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:02,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [219277579] [2020-10-14 08:08:02,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:02,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:02,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:02,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:02,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:02,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:07,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:07,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-14 08:08:07,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:08:07,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-14 08:08:07,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:07,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:07,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:07,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 08:08:07,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:07,714 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:07,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:07,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:07,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:07,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:07,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:07,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:07,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:07,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:07,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:07,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:07,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:07,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:07,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:07,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:07,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:07,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:07,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:08:07,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:08:07,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 08:08:07,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:07,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 08:08:07,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 08:08:07,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:07,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:08:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:07,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:07,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:07,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:07,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:07,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:07,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:07,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:07,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:07,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:08,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:08:08,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:08,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:08,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:08,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:08,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:08,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:08,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:08,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:08,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:08,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 08:08:08,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:08:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:08,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:08,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:08,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 08:08:08,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:08,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:08,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 08:08:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:08,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:08:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:08,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:08,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:08,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:08,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:08,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:08,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:08,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:08,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:08:08,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:08,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:08,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-14 08:08:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:08,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:08,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:08,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:08,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:08,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:08,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:08,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:08,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:08,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:08,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:08,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [219277579] [2020-10-14 08:08:08,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:08,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:08:08,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369490990] [2020-10-14 08:08:08,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:08:08,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:08,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:08:08,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:08:08,153 INFO L87 Difference]: Start difference. First operand 14792 states and 20891 transitions. Second operand 10 states. [2020-10-14 08:08:08,348 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:08,634 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:08:08,846 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:08:09,075 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:09,325 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2020-10-14 08:08:09,532 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-14 08:08:13,024 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-14 08:08:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:15,103 INFO L93 Difference]: Finished difference Result 40281 states and 57114 transitions. [2020-10-14 08:08:15,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:08:15,103 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2020-10-14 08:08:15,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:15,195 INFO L225 Difference]: With dead ends: 40281 [2020-10-14 08:08:15,195 INFO L226 Difference]: Without dead ends: 25031 [2020-10-14 08:08:15,234 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:08:15,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25031 states. [2020-10-14 08:08:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25031 to 23204. [2020-10-14 08:08:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23204 states. [2020-10-14 08:08:17,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23204 states to 23204 states and 32415 transitions. [2020-10-14 08:08:17,783 INFO L78 Accepts]: Start accepts. Automaton has 23204 states and 32415 transitions. Word has length 101 [2020-10-14 08:08:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:17,784 INFO L479 AbstractCegarLoop]: Abstraction has 23204 states and 32415 transitions. [2020-10-14 08:08:17,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:08:17,784 INFO L276 IsEmpty]: Start isEmpty. Operand 23204 states and 32415 transitions. [2020-10-14 08:08:17,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:08:17,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:17,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:17,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 08:08:17,807 INFO L427 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:17,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:17,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1182313655, now seen corresponding path program 1 times [2020-10-14 08:08:17,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:17,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023408925] [2020-10-14 08:08:17,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:17,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:17,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:18,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:18,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:19,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:22,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 08:08:22,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:22,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4632 [2020-10-14 08:08:22,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:22,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:22,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:22,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-14 08:08:22,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 08:08:22,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:22,654 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:22,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:22,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:22,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:22,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:22,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:22,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:22,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:22,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:22,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:22,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:22,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:22,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:22,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:22,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:22,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 08:08:22,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:22,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:22,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:08:22,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:22,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:22,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:22,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:22,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:22,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:22,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:22,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:22,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:22,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:22,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:22,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:22,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:22,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:22,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:22,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:22,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:22,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:22,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:22,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:22,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:08:22,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:22,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:08:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:22,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:22,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:22,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:08:22,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 08:08:22,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:22,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:22,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:22,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:08:22,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:08:22,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:22,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 08:08:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:22,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:22,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:22,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:22,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:22,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:22,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:22,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:22,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:22,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:22,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:22,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:22,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023408925] [2020-10-14 08:08:22,880 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:22,880 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:22,880 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285709885] [2020-10-14 08:08:22,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:22,881 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:22,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:22,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:22,881 INFO L87 Difference]: Start difference. First operand 23204 states and 32415 transitions. Second operand 9 states. [2020-10-14 08:08:23,359 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:26,006 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:08:26,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:26,518 INFO L93 Difference]: Finished difference Result 47322 states and 67018 transitions. [2020-10-14 08:08:26,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:08:26,519 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-14 08:08:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:26,637 INFO L225 Difference]: With dead ends: 47322 [2020-10-14 08:08:26,638 INFO L226 Difference]: Without dead ends: 31450 [2020-10-14 08:08:26,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:08:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31450 states. [2020-10-14 08:08:28,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31450 to 29270. [2020-10-14 08:08:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29270 states. [2020-10-14 08:08:28,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29270 states to 29270 states and 40892 transitions. [2020-10-14 08:08:28,403 INFO L78 Accepts]: Start accepts. Automaton has 29270 states and 40892 transitions. Word has length 102 [2020-10-14 08:08:28,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:28,403 INFO L479 AbstractCegarLoop]: Abstraction has 29270 states and 40892 transitions. [2020-10-14 08:08:28,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:28,403 INFO L276 IsEmpty]: Start isEmpty. Operand 29270 states and 40892 transitions. [2020-10-14 08:08:28,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-14 08:08:28,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:28,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:28,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 08:08:28,422 INFO L427 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:28,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:28,422 INFO L82 PathProgramCache]: Analyzing trace with hash -2118476118, now seen corresponding path program 1 times [2020-10-14 08:08:28,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:28,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116059124] [2020-10-14 08:08:28,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:28,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:28,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:28,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:28,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:28,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:30,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-14 08:08:33,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:33,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 08:08:33,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:33,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 08:08:33,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,650 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:33,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:33,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:33,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:33,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:33,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:33,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:33,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:33,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 08:08:33,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:33,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 08:08:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:33,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:33,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:33,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:33,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:33,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:33,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:33,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:33,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:33,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:33,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:33,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:33,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:33,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:08:33,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:08:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:33,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:08:33,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:33,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:08:33,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 08:08:33,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 08:08:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:33,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:33,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:33,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:33,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:33,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:33,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:33,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:33,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:33,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:33,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:33,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:33,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:33,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116059124] [2020-10-14 08:08:33,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:33,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:33,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077543196] [2020-10-14 08:08:33,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:33,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:33,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:33,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:33,884 INFO L87 Difference]: Start difference. First operand 29270 states and 40892 transitions. Second operand 9 states. [2020-10-14 08:08:34,079 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:34,246 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:08:34,432 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:34,612 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:08:35,298 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:38,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:38,660 INFO L93 Difference]: Finished difference Result 61702 states and 86308 transitions. [2020-10-14 08:08:38,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 08:08:38,661 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 102 [2020-10-14 08:08:38,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:38,766 INFO L225 Difference]: With dead ends: 61702 [2020-10-14 08:08:38,767 INFO L226 Difference]: Without dead ends: 32615 [2020-10-14 08:08:38,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380 [2020-10-14 08:08:38,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32615 states. [2020-10-14 08:08:40,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32615 to 30654. [2020-10-14 08:08:40,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30654 states. [2020-10-14 08:08:40,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30654 states to 30654 states and 42855 transitions. [2020-10-14 08:08:40,205 INFO L78 Accepts]: Start accepts. Automaton has 30654 states and 42855 transitions. Word has length 102 [2020-10-14 08:08:40,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:40,205 INFO L479 AbstractCegarLoop]: Abstraction has 30654 states and 42855 transitions. [2020-10-14 08:08:40,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:40,206 INFO L276 IsEmpty]: Start isEmpty. Operand 30654 states and 42855 transitions. [2020-10-14 08:08:40,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-14 08:08:40,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:40,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:40,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 08:08:40,219 INFO L427 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:40,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:40,219 INFO L82 PathProgramCache]: Analyzing trace with hash 108994515, now seen corresponding path program 1 times [2020-10-14 08:08:40,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:40,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705277093] [2020-10-14 08:08:40,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:40,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:40,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:40,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:42,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:42,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 08:08:45,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 08:08:45,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:08:45,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 08:08:45,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 08:08:45,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,412 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:45,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:45,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:08:45,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:45,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 08:08:45,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 08:08:45,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 08:08:45,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 08:08:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:45,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:45,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:45,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 08:08:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:45,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:45,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:45,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 08:08:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:08:45,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 08:08:45,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:45,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:45,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:08:45,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-14 08:08:45,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:08:45,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 08:08:45,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:08:45,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:08:45,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 08:08:45,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 08:08:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:45,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:45,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:45,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:45,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 08:08:45,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:45,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:45,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:45,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:45,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:45,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705277093] [2020-10-14 08:08:45,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:45,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:08:45,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476272280] [2020-10-14 08:08:45,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:08:45,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:45,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:08:45,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:08:45,675 INFO L87 Difference]: Start difference. First operand 30654 states and 42855 transitions. Second operand 9 states. [2020-10-14 08:08:46,140 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:49,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:08:49,287 INFO L93 Difference]: Finished difference Result 52660 states and 74223 transitions. [2020-10-14 08:08:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:08:49,287 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2020-10-14 08:08:49,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:08:49,404 INFO L225 Difference]: With dead ends: 52660 [2020-10-14 08:08:49,405 INFO L226 Difference]: Without dead ends: 37201 [2020-10-14 08:08:49,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:08:49,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37201 states. [2020-10-14 08:08:52,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37201 to 34954. [2020-10-14 08:08:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34954 states. [2020-10-14 08:08:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34954 states to 34954 states and 48758 transitions. [2020-10-14 08:08:52,291 INFO L78 Accepts]: Start accepts. Automaton has 34954 states and 48758 transitions. Word has length 103 [2020-10-14 08:08:52,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:08:52,292 INFO L479 AbstractCegarLoop]: Abstraction has 34954 states and 48758 transitions. [2020-10-14 08:08:52,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:08:52,292 INFO L276 IsEmpty]: Start isEmpty. Operand 34954 states and 48758 transitions. [2020-10-14 08:08:52,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 08:08:52,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:08:52,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:08:52,303 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 08:08:52,303 INFO L427 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:08:52,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:08:52,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1842721043, now seen corresponding path program 1 times [2020-10-14 08:08:52,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:08:52,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092451051] [2020-10-14 08:08:52,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:08:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:52,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:52,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:53,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 08:08:57,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:08:57,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 08:08:57,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 08:08:57,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:57,499 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:08:57,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:08:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:08:57,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:57,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:57,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:57,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:57,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:57,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:08:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:08:57,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 08:08:57,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 08:08:57,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:08:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:08:57,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 08:08:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:57,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:08:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:08:57,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:57,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:57,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:57,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:57,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:08:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:57,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:08:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:08:57,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:57,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:57,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:08:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:57,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:08:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:08:57,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:08:57,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:08:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 08:08:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 08:08:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 08:08:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:08:57,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:08:57,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:08:57,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:57,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:57,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-14 08:08:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:08:57,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:08:57,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:08:57,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:08:57,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:08:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:08:57,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:08:57,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:08:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:08:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:08:57,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:08:57,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:08:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:08:57,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092451051] [2020-10-14 08:08:57,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:08:57,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-14 08:08:57,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072906035] [2020-10-14 08:08:57,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-14 08:08:57,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:08:57,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-14 08:08:57,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-14 08:08:57,801 INFO L87 Difference]: Start difference. First operand 34954 states and 48758 transitions. Second operand 10 states. [2020-10-14 08:08:58,000 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:08:58,377 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:08:58,559 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2020-10-14 08:08:58,770 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2020-10-14 08:08:58,939 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-10-14 08:08:59,138 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-10-14 08:09:03,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:03,840 INFO L93 Difference]: Finished difference Result 54181 states and 75684 transitions. [2020-10-14 08:09:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-14 08:09:03,841 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 104 [2020-10-14 08:09:03,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:03,902 INFO L225 Difference]: With dead ends: 54181 [2020-10-14 08:09:03,906 INFO L226 Difference]: Without dead ends: 29794 [2020-10-14 08:09:03,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-10-14 08:09:03,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29794 states. [2020-10-14 08:09:05,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29794 to 28028. [2020-10-14 08:09:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28028 states. [2020-10-14 08:09:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28028 states to 28028 states and 39301 transitions. [2020-10-14 08:09:05,352 INFO L78 Accepts]: Start accepts. Automaton has 28028 states and 39301 transitions. Word has length 104 [2020-10-14 08:09:05,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:05,352 INFO L479 AbstractCegarLoop]: Abstraction has 28028 states and 39301 transitions. [2020-10-14 08:09:05,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-14 08:09:05,352 INFO L276 IsEmpty]: Start isEmpty. Operand 28028 states and 39301 transitions. [2020-10-14 08:09:05,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-14 08:09:05,363 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:05,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:05,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 08:09:05,363 INFO L427 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:05,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:05,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1146254160, now seen corresponding path program 1 times [2020-10-14 08:09:05,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:05,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557634249] [2020-10-14 08:09:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:05,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:05,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:07,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-14 08:09:10,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:09:10,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 08:09:10,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-14 08:09:10,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-14 08:09:10,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,564 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:10,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:10,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:10,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:10,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:09:10,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:10,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 08:09:10,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:10,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:10,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:10,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:10,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 08:09:10,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:10,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:10,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 08:09:10,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 08:09:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:10,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:10,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:09:10,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-14 08:09:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:09:10,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:10,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:09:10,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 08:09:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:10,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:10,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:10,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:10,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:10,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:10,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:10,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:10,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:10,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:10,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:10,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557634249] [2020-10-14 08:09:10,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:10,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:10,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921523384] [2020-10-14 08:09:10,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:10,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:10,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:10,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:10,759 INFO L87 Difference]: Start difference. First operand 28028 states and 39301 transitions. Second operand 9 states. [2020-10-14 08:09:10,934 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:09:12,666 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-10-14 08:09:15,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:15,669 INFO L93 Difference]: Finished difference Result 72981 states and 102909 transitions. [2020-10-14 08:09:15,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:09:15,671 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 105 [2020-10-14 08:09:15,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:15,784 INFO L225 Difference]: With dead ends: 72981 [2020-10-14 08:09:15,784 INFO L226 Difference]: Without dead ends: 48209 [2020-10-14 08:09:15,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:09:15,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48209 states. [2020-10-14 08:09:17,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48209 to 43851. [2020-10-14 08:09:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43851 states. [2020-10-14 08:09:18,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43851 states to 43851 states and 59582 transitions. [2020-10-14 08:09:18,038 INFO L78 Accepts]: Start accepts. Automaton has 43851 states and 59582 transitions. Word has length 105 [2020-10-14 08:09:18,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:18,039 INFO L479 AbstractCegarLoop]: Abstraction has 43851 states and 59582 transitions. [2020-10-14 08:09:18,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:18,039 INFO L276 IsEmpty]: Start isEmpty. Operand 43851 states and 59582 transitions. [2020-10-14 08:09:18,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-14 08:09:18,048 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:18,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:18,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 08:09:18,048 INFO L427 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:18,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:18,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1725336841, now seen corresponding path program 1 times [2020-10-14 08:09:18,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:18,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1438979157] [2020-10-14 08:09:18,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:18,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:18,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 08:09:23,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:23,258 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:23,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:23,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:23,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:23,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:23,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:23,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:23,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:23,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:23,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:23,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:23,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:23,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:23,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 08:09:23,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:23,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:23,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 08:09:23,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:23,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 08:09:23,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:23,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,355 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:23,355 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:23,355 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:23,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:23,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:23,356 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:23,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:23,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:23,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:23,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:23,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:23,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 08:09:23,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:23,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:23,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:23,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 08:09:23,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 08:09:23,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:23,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-14 08:09:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:23,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:23,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:23,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:23,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:23,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 08:09:23,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:23,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:23,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-14 08:09:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:23,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:09:23,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:23,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:23,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:23,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:23,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:09:23,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:23,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-14 08:09:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:23,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:23,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:23,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:23,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:23,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:23,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:23,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:23,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:23,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:23,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:23,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1438979157] [2020-10-14 08:09:23,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:23,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:23,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110357136] [2020-10-14 08:09:23,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:23,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:23,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:23,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:23,514 INFO L87 Difference]: Start difference. First operand 43851 states and 59582 transitions. Second operand 9 states. [2020-10-14 08:09:23,704 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:23,910 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-14 08:09:24,116 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2020-10-14 08:09:24,840 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-10-14 08:09:29,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:29,894 INFO L93 Difference]: Finished difference Result 64921 states and 87994 transitions. [2020-10-14 08:09:29,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-14 08:09:29,894 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 108 [2020-10-14 08:09:29,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:29,998 INFO L225 Difference]: With dead ends: 64921 [2020-10-14 08:09:29,998 INFO L226 Difference]: Without dead ends: 51034 [2020-10-14 08:09:30,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2020-10-14 08:09:30,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51034 states. [2020-10-14 08:09:32,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51034 to 47764. [2020-10-14 08:09:32,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47764 states. [2020-10-14 08:09:32,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47764 states to 47764 states and 64899 transitions. [2020-10-14 08:09:32,455 INFO L78 Accepts]: Start accepts. Automaton has 47764 states and 64899 transitions. Word has length 108 [2020-10-14 08:09:32,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:32,455 INFO L479 AbstractCegarLoop]: Abstraction has 47764 states and 64899 transitions. [2020-10-14 08:09:32,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:32,455 INFO L276 IsEmpty]: Start isEmpty. Operand 47764 states and 64899 transitions. [2020-10-14 08:09:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:09:32,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:32,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:32,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 08:09:32,465 INFO L427 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:32,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:32,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1882698144, now seen corresponding path program 1 times [2020-10-14 08:09:32,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:32,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301097459] [2020-10-14 08:09:32,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:32,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:32,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:32,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:32,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:32,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:33,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:37,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 08:09:37,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:09:37,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 08:09:37,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:37,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:37,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-14 08:09:37,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-14 08:09:37,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:37,680 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:37,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:37,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:37,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:37,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:37,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:37,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:37,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:37,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:37,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:37,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:37,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:37,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:37,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:37,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 08:09:37,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:37,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:37,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 08:09:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:37,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:37,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:37,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:37,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:37,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:37,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:37,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:37,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:37,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:37,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:37,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:37,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:37,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:37,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:37,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 08:09:37,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:37,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:37,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:37,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:37,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:37,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:09:37,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:37,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:37,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:37,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 08:09:37,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:09:37,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:37,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:37,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:09:37,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:37,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:09:37,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:37,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:37,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:09:37,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:37,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:37,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:37,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:37,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:37,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:09:37,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:37,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:37,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:09:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:37,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:37,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:37,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:37,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:37,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:37,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:37,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:37,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:37,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:37,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:37,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301097459] [2020-10-14 08:09:37,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:37,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:37,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057286380] [2020-10-14 08:09:37,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:37,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:37,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:37,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:37,933 INFO L87 Difference]: Start difference. First operand 47764 states and 64899 transitions. Second operand 9 states. [2020-10-14 08:09:38,457 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:40,903 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:43,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:43,590 INFO L93 Difference]: Finished difference Result 106354 states and 145564 transitions. [2020-10-14 08:09:43,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 08:09:43,591 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-10-14 08:09:43,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:43,757 INFO L225 Difference]: With dead ends: 106354 [2020-10-14 08:09:43,757 INFO L226 Difference]: Without dead ends: 66458 [2020-10-14 08:09:43,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=102, Invalid=240, Unknown=0, NotChecked=0, Total=342 [2020-10-14 08:09:43,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66458 states. [2020-10-14 08:09:47,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66458 to 62948. [2020-10-14 08:09:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62948 states. [2020-10-14 08:09:47,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62948 states to 62948 states and 85024 transitions. [2020-10-14 08:09:47,378 INFO L78 Accepts]: Start accepts. Automaton has 62948 states and 85024 transitions. Word has length 109 [2020-10-14 08:09:47,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 08:09:47,379 INFO L479 AbstractCegarLoop]: Abstraction has 62948 states and 85024 transitions. [2020-10-14 08:09:47,379 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 08:09:47,379 INFO L276 IsEmpty]: Start isEmpty. Operand 62948 states and 85024 transitions. [2020-10-14 08:09:47,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-14 08:09:47,388 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 08:09:47,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 08:09:47,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 08:09:47,388 INFO L427 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 08:09:47,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 08:09:47,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1229570899, now seen corresponding path program 1 times [2020-10-14 08:09:47,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 08:09:47,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473274306] [2020-10-14 08:09:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 08:09:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:47,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:47,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:47,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:47,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:47,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:48,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-14 08:09:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:52,585 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-14 08:09:52,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 08:09:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:52,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:52,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 08:09:52,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:52,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 08:09:52,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:52,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:52,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:52,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:52,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:52,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:52,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 08:09:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:52,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:52,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-14 08:09:52,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:52,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 08:09:52,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:52,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:52,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:52,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:52,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-14 08:09:52,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:52,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-14 08:09:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:52,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:52,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 08:09:52,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:52,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 08:09:52,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:52,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:52,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 08:09:52,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:52,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-14 08:09:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:52,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:52,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:52,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:52,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 08:09:52,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:52,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 08:09:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 08:09:52,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 08:09:52,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:52,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 08:09:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:52,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:52,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 08:09:52,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:52,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 08:09:52,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:52,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 08:09:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 08:09:52,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 08:09:52,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:52,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-14 08:09:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:52,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:52,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 08:09:52,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 08:09:52,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:52,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-14 08:09:52,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:52,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:52,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 08:09:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 08:09:52,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 08:09:52,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 08:09:52,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 08:09:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 08:09:52,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473274306] [2020-10-14 08:09:52,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 08:09:52,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-14 08:09:52,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595788417] [2020-10-14 08:09:52,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 08:09:52,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 08:09:52,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 08:09:52,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-14 08:09:52,794 INFO L87 Difference]: Start difference. First operand 62948 states and 85024 transitions. Second operand 9 states. [2020-10-14 08:09:52,989 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2020-10-14 08:09:58,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 08:09:58,731 INFO L93 Difference]: Finished difference Result 111602 states and 151544 transitions. [2020-10-14 08:09:58,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 08:09:58,731 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-10-14 08:09:58,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 08:09:58,920 INFO L225 Difference]: With dead ends: 111602 [2020-10-14 08:09:58,921 INFO L226 Difference]: Without dead ends: 74635 [2020-10-14 08:09:58,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-14 08:09:59,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74635 states.